Compact portable diffraction moire interferometer

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:867049

Deason, Vance A ^[1]; Ward, Michael B ^[2]

---

1. Shelley, ID
2. Idaho Falls, ID

A compact and portable moire interferometer used to determine surface deformations of an object. The improved interferometer is comprised of a laser beam, optical and fiber optics devices coupling the beam to one or more evanescent wave splitters, and collimating lenses directing the split beam at one or more specimen gratings. Observation means including film and video cameras may be used to view and record the resultant fringe patterns.

• Research Organization: EG & G IDAHO INC
• DOE Contract Number: AC07-76ID01570
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4850693
• OSTI ID: 867049
• Country of Publication: United States
• Language: English

Related Subjects

compact
portable
diffraction
moire
interferometer
determine
surface
deformations
improved
comprised
laser
beam
optical
fiber
optics
devices
coupling
evanescent
wave
splitters
collimating
lenses
directing
split
specimen
gratings
observation
means
including
film
video
cameras
view
record
resultant
fringe
patterns
moire interferometer
collimating lens
means including
video camera
fiber optics
fiber optic
laser beam
fringe pattern
specimen gratings
evanescent wave
split beam
optics devices
collimating lenses
determine surface
diffraction moire
video cameras
portable diffraction
devices coupling
/356/